Air is to be compressed steadily and isentropically from 1 atm to 16 atm by a two-stage

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Air is to be compressed steadily and isentropically from 1 atm to 16 atm by a two-stage compressor. To minimize the total compression work, the intermediate pressure between the two stages must be
(a) 3 atm
(b) 4 atm
(c) 8.5 atm
(d) 9 atm
(e) 12 atm
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Thermodynamics An Engineering Approach

ISBN: 978-0073398174

8th edition

Authors: Yunus A. Cengel, Michael A. Boles

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